. >> he put roxy over his head and threw her towards incoming traffic. >> roxy survived being thumped on the pavement, but she was later put down because she suffered major injuries. >> police are starting to collect images from cameras in the neighborhood and there are two witness whose saw what happened. one is offering a reward. >> he was really big and she's pretty small. i can tell he was really going to hurt her. >> he wasn't able to get to the struggle in time to save roxy, but he's offering a $1,000 reward to help catch the attacker. >> but to hold it ahead your head as high as you can and slam it into travel is another whole level. >> in fran, abc7 news. >>> and here is a description of the man list are look for. they say he's black, in his late 2s, but 6'1" with a lean build. he was clean-shaven, wearing a block hoodie or beanie. anyone with information about the attack should call san francisco police. >>> friends of the man shot and killed by walnut creek police early thursday morning held a vigil last night at the hair salon where he worked. they came to remember 22-year-